Home / 279,116.36-385,290.04-197,869.26

Finding the Fourth Proportional to 279,116.36, 385,290.04 and 197,869.26

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Solution

The fourth proportional to 279,116.36, 385,290.04 and 197,869.26 is: 273,137.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,116.36 : 385,290.04 = 197,869.26 : x
  2. Step 2: Convert to fraction form
    279,116.36/385,290.04 = 197,869.26/x
  3. Step 3: Cross multiply
    279,116.36x = 385,290.04 × 197,869.26
  4. Step 4: Simplify right side
    279,116.36x = 76,237,055,100.17
  5. Step 5: Solve for x
    x = 76,237,055,100.17/279,116.36
  6. Step 6: Final answer
    x = 273,137.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.